The Effect of Terrain on Entheseal Changes in the Lower Limbs

One of the main factors involved in entheseal changes (EC) aetiology may be related to the physiological limits of biomechanical loading fixed during bone development, such that higher load during childhood and the adolescent growth spurt leads to a lower frequency of EC during adulthood. In this sense, it is possible that ECs may be related to overloading beyond an individual's normal physiological limits as established during childhood and adolescence. This meta‐analysis tested this aetiological possibility by studying the influence of terrain on the entheses of the lower extremities. The hypothesis is that individuals who inhabited rugged terrain have lower EC than those living in flat terrain. This is because biomechanical loads associated with rugged terrain will lead to a higher normal capacity (defined during skeletal development) mitigating the probability of overloading compared to those living in flat terrain who will therefore have a higher frequency of ECs. To test this, papers reporting EC frequencies in the lower limbs were analysed alongside the local terrain. Terrain was defined into two categories: flat or rugged based on altimetry profile, i.e. the average elevation gains and losses along four specific paths (North‐South, East‐West, Northwest‐Southeast, Southwest‐Northeast). Odds ratios were calculated to compare rugged and flat terrain. The overall results are consistent with the hypothesis that overloading is a factor in EC aetiology. However, when the analysis is conducted by sex and side, this general trend does not always occur. Limitations such as the lack of standardized age ranges could be affecting the outcome, i.e. older individuals have a higher frequency of ECs. The findings of this analysis suggest that the theoretical assumptions associated with the cause of ECs require further testing and evaluation. Copyright © 2017 John Wiley & Sons, Ltd.     

Investigating DEM Error Patterns by Directional Variograms and Fourier Analysis

In many spatial analyses and GIS applications, a Digital Elevation Model (DEM) is often used to derive a variety of new variables and parameters. Previous research shows that the accuracy of derived variables is affected, not merely by the magnitude of DEM errors and the algorithms applied to derive these variables, but also by the spatial structure of DEM errors. However, the lack of knowledge and understanding of the spatial structure of DEM errors often handicaps the analysis of error propagation. This paper investigates the spatial autocorrelation and anisotropic pattern of DEM error by using directional variograms in the spatial domain and Fourier analysis in the frequency domain. Based on an empirical study, it is concluded that the spatial autocorrelation pattern of DEM errors is anisotropic and scale-dependent, and that the maximum direction and range of the autocorrelation depends upon the orientation and wavelength of the terrain features. For a smooth terrain, the magnitude of DEM errors is correlated to surface slope. For a rugged terrain, the elevation values in DEMs tend to be underestimated in ridges, and overestimated in valleys, but the correlation between the DEM error and surface slope is quite low.     

Childhood trauma in several populations from the Iberian Peninsula

A study was conducted on a collection of 123 juvenile skeletons from various sites dating to the Bronze Age (Argar culture) and from the medieval cemeteries of La Torrecilla, Villanueva de Soportilla and San Baudelio, all in the Iberian Peninsula. No cranial trauma was observed. However, four postcranial fractures were found, including three from Castellón Alto, a typical Argaric village of some urban complexity built on steep terraces in high and rugged terrain. The combination of a hazardous environment and a climate that encourages outdoor play may explain the relatively high frequency of childhood trauma in the burials from the Argar culture. Copyright © 2006 John Wiley & Sons, Ltd.     

Fossil dogs and wolves from Palaeolithic sites in Belgium,the Ukraine and Russia: osteometry,ancient DNA and stable isotopes

Using multivariate techniques, several skulls of fossil large canids from sites in Belgium, Ukraine and Russia were examined to look for possible evidence of the presence of Palaeolithic dogs. Reference groups constituted of prehistoric dogs, and recent wolves and dogs. The fossil large canid from Goyet (Belgium), dated at c. 31,700 BP is clearly different from the recent wolves, resembling most closely the prehistoric dogs. Thus it is identified as a Palaeolithic dog, suggesting that dog domestication had already started during the Aurignacian. The Epigravettian Mezin 5490 (Ukraine) and Mezhirich (Ukraine) skulls are also identified as being Palaeolithic dogs. Selected Belgian specimens were analyzed for mtDNA and stable isotopes. All fossil samples yielded unique DNA sequences, indicating that the ancient Belgian large canids carried a substantial amount of genetic diversity. Furthermore, there is little evidence for phylogeographic structure in the Pleistocene large canids, as they do not form a homogenous genetic group. Although considerable variation occurs in the fossil canid isotope signatures between sites, the Belgian fossil large canids preyed in general on horse and large bovids.     

Taphonomic analysis of leporid remains obtained from modern Iberian lynx (Lynx pardinus) scats

Distinguishing leporid bones accumulated by diurnal raptors, owls, mammals and humans is essential to understand not only past human subsistence activities but also past ecology. This is particularly relevant in Iberian Palaeolithic sites where leporid remains usually constitute the most abundant taxon. As far as terrestrial mammal carnivores are concerned, the Iberian lynx (Lynx pardinus) would be the main leporid predator in the Iberian Peninsula. Up until now its contribution as a rabbit bone accumulator in archaeological sites has never been properly assessed. In order to investigate the taphonomic signature of this predator the analysis of 33 samples of modern Iberian lynx scats was carried out. Results show that leporid remains consumed by this carnivore appear very fragmented and exhibit a strong degree of corrosion digestion. Cranial elements are most abundant followed by long bones. Whereas there seem to be clear differences in relation to breakage and digestion alteration caused by owls, some of the patterns obtained are closest to those established with diurnal raptors.     

Prehistoric land use and hydrology: a multi-scalar spatial analysis in central Arizona

Human land-use strategies involving the management of rainfall and runoff to promote crop production are found throughout the world. This paper presents a functional assessment using hydrological modeling with modern high-resolution LiDAR datasets and contextual archaeological site data to study prehistoric agriculture. The focus is on rock alignments created by the Hohokam culture in the semi-arid environment of the US Southwest. By incorporating a multi-scalar GIS study for terrain analysis at a regional, community, and site scale, the complex interactions between the prehistoric sites, features and the environment are revealed. The results of these analyses on digital elevation models (DEMs) gave insight to the past functionality of such agricultural features within the cultivated landscapes. The results included:1) The agricultural features were suitably placed for the collection of rainfall and runoff.2) The features were reducing the volume of water flowing through the area to prevent flooding and crop destruction and promoting soil infiltration.This shows the complexity and innovation of prehistoric societies living in marginal environments and how their adaptation to such environments was necessary to sustain their populations.     

基于GIS的吐鲁番地区古遗址空间分布及其影响因素分析

为了研究吐鲁番地区古遗址分布特征,运用GIS的空间分析方法对吐鲁番地区不同时期古遗址的空间分布特征进行了分析研究。从地形特征进行分析发现吐鲁番地区古遗址在海拔-100m~200m,坡度0~15度的洪积平原区集中分布。通过点线分析发现吐鲁番地区古遗址距河流,距道路距离都在一定的范围之内分布,可以得出古遗址的分布有线性分布的特征;通过聚集分析,发现吐鲁番地区古遗址具有以交河古城和高昌故城两个比较明显的聚集点为中心分布的聚集特性。研究古遗址的空间分布特征为古遗址的进一步的研究和保护提供重要参考依据。     

Paleoindian technological provisioning strategies in the northwestern Great Basin

Great Basin populations during the Pleistocene–Holocene Transition (PHT) are often characterized as being mobile and focused on wetlands; however, the factors that influenced where Paleoindians selected residential campsites are poorly understood. Using predictions derived from optimal foraging-based patch choice models and GIS reconstructions of the PHT landscape, some researchers have argued that occupations in smaller wetlands should have been shorter than occupations in larger wetlands but such arguments have rarely been evaluated using empirical data. The PHT lithic record provides an opportunity to evaluate the relationship between wetland size and occupation span by applying Kuhn's (1995) concept of technological provisioning. Kuhn expects more mobile populations to provision individuals and more sedentary populations to provision places and suggests that: (1) a strategy of provisioning individuals should be reflected by a high proportion of more extensively used artifacts made on non-local raw materials; and (2) a strategy of provisioning places should be reflected by a high proportion of less extensively used artifacts made on local raw materials. We apply the technological provisioning concept to lithic assemblages from two of the Parman localities, extensive PHT sites in the northwestern Great Basin, and compare local and nonlocal artifacts to determine if Paleoindians shifted from provisioning individuals while moving to/from the sites to provisioning the place while occupying them. There is no relationship between artifact transport distance and artifact use intensity. We interpret these findings as evidence that Paleoindians did not alter their provisioning strategies while occupying the Parman localities, likely because occupations were brief within a small wetland poorly-suited to support groups for long periods.     

SOME DATA ON CHANGES IN TRANSPORT ACCESSIBILITY OF EAST SIBERIA AND THE SOVIET FAR EAST IN CONNECTION WITH CONSTRUCTION OF THE BAM

The impact of the Baikal-Amur Mainline on accessibility to resource sites in East Siberia and the Soviet Far East is measured. At the present time, a little more than one-half of the developed southern portion of the region lies within 200 km of the Trans-Siberian. As a result of the construction of the BAM, nearly 75 percent of the area will be within 200 km of the nearest railroad. The gains in distance to the nearest railroad are mapped, and show a maximum gain (of 420–450 km) in an area northeast of the northern tip of Lake Baikal. Although the BAM, because of difficult terrain, is still distinguished by a high coefficient of sinuosity (compared with the great-circle distance), it does represent a gain over the present distance from the Pacific coast to points west of Lake Baikal.     

Using multivariate statistics and fuzzy logic system to analyse settlement preferences in lowland areas of the temperate zone: an example from the Polish Lowlands

The influence of relief, as well as other environmental features such as soils or the hydrological regime, on prehistoric settlement patterns is commonly accepted. Settlement patterns and preferences changed over time in different areas, so it is difficult to formulate general rules of human behaviour throughout history. In lowland areas of the temperate zone, which lack radical relief changes and have widespread access to water resources, specific settlement preferences and significant changes in these preferences are difficult to interpret.New methods developed to address the problem of the settlement transformations as a result of prehistoric settlement and economic processes using multivariate statistics have been adapted for the middle part of the Great Poland Lowland. In this region, data from the Polish Archaeological Record Project database have been used.Models of the dependence between geomorphological features and settlement intensity form the basis for estimating changes in prehistoric settlements. The degree of preference (or avoidance) is a nonparametric function of the number of archaeological sites observed in the area relative to the number of sites expected from a completely random pattern. The most crucial factors for settlement are distance to plateau edges, distance to water bodies, and the wetness index. The results show that the entire investigated area is more or less suitable for settlement, but the most occupied terrains are the areas near plateau edges.     

Undertaking a Dissertation from Start to Finish: The Process and Product

Advocates for using a geographic information system (GIS) in education assert that GIS improves student learning. However, studies to clarify the relationship between learning and using GIS are still needed. This study examines the effects of using Web-based GIS maps in place of paper maps on students' geography content knowledge and motivation (self-efficacy) when taking college-level introductory human geography (N = 171). Hierarchical regression analysis shows that using Web-based GIS is positively related to post-test self-efficacy and post-test geography content knowledge.     

Comparing Climate Change Policy Adoption and Its Extension across Areas of City Policymaking

Public policies increasingly address complex problems such as climate change mitigation and climate change adaptation that require forging connections across existing areas of policy activity. Despite the emerging prominence of these types of policymaking challenges, more research is needed to understand policy responses to them. In this paper, I use survey responses from 287 cities and a hurdle model to comparatively examine the factors that underlie the adoption of climate change mitigation and adaptation as issues influencing city policymaking and their extension across areas of city policymaking. I find evidence that while social change, crisis, and conditions supporting nascent coalitions were associated with adoption, extension across areas of policymaking was associated with the city?s prevailing political economy as well as the resources for expanding communities of interest. In the process, I offer empirical evidence for existing similarities and differences in cities? considerations about climate change mitigation and adaptation; particularly that the number of policymaking areas influenced by mitigation was associated with financial factors while the number influenced by adaptation was associated with socioeconomic ones.     

Evolving technology,shifting expectations: cultivating pedagogy for a rapidly changing GIS landscape

As humans and natural processes continuously reshape the surface of the Earth, there is an unceasing need to document and analyze them through the use of Geographic Information Systems (GIS). The public is gaining more access to spatial technologies that were once only available to highly trained professionals. With technological evolution comes a requirement to transition traditional GIS training for the next generation of GIS professionals. Traditional GIS combined with non-traditional GIS (i.e. mobile and location media) and CyberGIS educational materials could attract new and diverse students into Geography departments while informing the next generation of geospatial tool builders and users. Here we pose an applied pedagogical framework for teaching cutting-edge GIS material to diverse student populations with varying levels of technological experience and professional goals. The framework was developed as part of the National Science Foundation (NSF) CyberGIS Fellows program and was applied as a course template at the University of Washington Tacoma’s Master’s of Science in Geospatial Technologies. We chart how the framework developed into a cyclical structure from our original conceptualization as a hierarchy. This changed the epistemological orientation accommodating the shifting technological terrain of the GIS landscape to improve the skills of those driving the machines.     

Teaching practical science online using GIS: a cautionary tale of coping strategies

Strong demand for GIS and burgeoning cohorts have encouraged the delivery of GIS teaching via online distance education models. This contribution reviews a brief foray (2012–2014) into this field by the Open University, deploying open source GIS software to enable students to perform practical science investigations online. The “Remote observation” topic spanned four science disciplines in 6 weeks – an ambitious remit within an innovative overarching module. Documenting the challenges and strategies involved, this paper uses forum usage and student feedback data to derive insights into the student experience and the pitfalls and pleasures of teaching GIS at a distance.     

GIS在北京延庆大庄科辽代冶铁遗址群景观考古研究中的初步应用

以北京延庆县大庄科乡冶铁遗址群为例,对空间结构及其与资源、环境间的关系通过GIS工具进行分析。根据对冶炼活动有显著关系的影响因子,建立遗址分布之间的定量关系,进而模拟小区域范围内的遗址预测。研究发现,该区冶铁遗址群对地理位置中的坡度和高程因素展现出较强的依赖性,主要表现为遗址的坡度(7°以下)和高程(650m以下)数值均相对较小;遗址与水系间联系明显,冶铁遗址主要集中在河流交汇处,方便冶炼过程及相关活动水源的供应;而随着冶炉容积(即冶铁产量)的增加,小范围内的冶铁遗址选择,并未以铁矿资源距离就近为最佳选取原则,表明了人类生产活动中对资源的依赖程度有所减低。     

Investigation of past archaeological landscapes using remote sensing and GIS: a multi-method case study from Mount Ida,Crete

Spatial analysis in geoarchaeological applications can be improved by implementing a wider set of geoecological parameters, in order to provide more precise results. The aim of the paper is to show how geoscientific ground-truth and techniques can be adopted for detailed archaeological studies using a comprehensive set of environmental variables that might have influenced ancient settlement patterns. The project focuses on spatial patterns of archaeological sites as well as Bronze Age communication paths in Central Crete by applying a multi-method approach (surveying, remote sensing, DEM analysis, least-cost analysis, candidate site detection, predictive modelling, etc.). In contrast to conventional archaeological GIS applications this enhanced strategy offers promising prospects regarding landscape and settlement modelling.     

A Hybrid Approach for Mass Valuation of Residential Properties through Geographic Information Systems and Machine Learning Integration

Geographic Information Systems (GIS) and Machine Learning methods are now widely used in mass property valuation using the physical attributes of properties. However, locational criteria, such as as proximity to important places, sea or forest views, flat topography are just some of the spatial factors that affect property values and, to date, these have been insufficiently used as part of the valuation process. In this study, a hybrid approach is developed by integrating GIS and Machine Learning for mass valuation of residential properties. GIS-based Nominal Valuation Method was applied to carry out proximity, terrain, and visibility analyses using Ordnance Survey and OpenStreetMap data, than land value map of Great Britain was produced. Spatial criteria scores obtained from the GIS analyses were included in the price prediction process in which global and spatially clustered local regression models are built for England and Wales using Price Paid Data and Energy Performance Certificates data. Results showed that adding locational factors to the property price data and applying a novel nominally weighted spatial clustering algorithm for creating a local regression increased the prediction accuracy by about 45%. It also demonstrated that Random Forest was the most accurate ensemble model.     

Modelling small-arms projectile distribution on eighteenth- and nineteenth-century battlefield sites

The application of Geographic Information Systems (GIS) technologies to archaeological investigations continues to provide new perspectives on historical events. Applied to battlefield archaeology, GIS analysis offers an efficient means of predicting potential artefact distribution across a conflict landscape. The approach proposed in this piece allows a user to test historical engagement scenarios within a desktop computing environment utilizing a customized GIS application. The study was intended to develop a framework that allowed for the input of quantifiable parameters in order to illustrate potential artefact patterning. The framework consists of two components, the trajectory model and the methodology for implementing it. Using this coarse-grained approach, it is our contention that small-arms projectile distribution can be estimated for a single engagement, and in doing so provide a more comprehensive view of potential artefact patterning than using KOCOA (Key Terrain, Observation and Fields of Fire, Concealment and Cover, Obstacles, Avenues of Approach/Withdrawal) terrain analysis or historic research alone. As an initial example to illustrate the efficacy of our model, this study uses data and parameters from the 1777 Battle of Ridgefield, Connecticut landscape as a test case.     

Mandibular hypodontia and osteoarthritis in prehistoric bighorn sheep (Ovis canadensis) in eastern Washington State,USA

Mandibular hypodontia of the p2 was found to occur in 3 out of 21 individual prehistoric Rocky Mountain bighorn sheep (Ovis canadensis canadensis) from Moses Coulee Cave in eastern Washington State, similar to its frequency of occurrence in modern bighorn. There is no evidence of lumpy jaw (mandibular osteomyelitis) in the Moses Coulee Cave collection. Evidence from Moses Coulee Cave aligns with the hypothesis that low frequencies of hypodontia and lumpy jaw occur in healthy, evolutionarily old (maintenance) populations in order to maintain the occlusal area and thus maximise efficiency of food procurement and processing. Osteoarthritis was found to occur in 1 out of 70 individual Rocky Mountain bighorn sheep (Ovis canadensis canadensis) astragali in the Moses Coulee Cave collection. This prevalence is unsurprising given a population dominated by prime‐age individuals. Osteoarthritis was likely selected against given that individuals must be agile to effectively use rugged terrain to escape predation and as a general measure suggests a healthy population. Copyright © 2009 John Wiley & Sons, Ltd.     

Examining Activity Patterns and Biological Confounding Factors: Differences between Fibrocartilaginous and Fibrous Musculoskeletal Stress Markers

The present study examines a sample of 105 hunter–gatherer California Amerinds to determine whether fibrocartilaginous musculoskeletal stress markers (MSMs) are better for activity reconstructions than fibrous MSMs. Femoral and humeral head diameters were measured as proxies to body size. All data were analysed for statistical significance using non‐parametric tests. Fibrous MSMs of the left deltoideus, left and right hip adductors, and left and right tibial soleus correlate positively with body size proxies. For fibrocartilaginous MSMs, the right humeral teres minor insertion negatively correlates with humeral head diameter. Both types of MSMs correlate positively with age. More upper limb fibrocartilaginous MSMs display asymmetry than do upper limb fibrous MSMs. Lower limb sex differences were found at the same MSM sites that correlated with body size. Upper limb sex differences at the right teres major, a fibrous site, and the right triceps brachii, a fibrocartilaginous site, seem to reflect activity patterns. Results suggest that fibrocartilaginous MSMs are more useful in reconstructing activity patterns because they display more asymmetry in upper limbs and are less affected by body size than are fibrous MSMs. Yet, correlations with age and a lack of variability at fibrocartilaginous MSM sites may hinder their utility in activity reconstructions. Copyright © 2012 John Wiley & Sons, Ltd.